Deposits on contracts consist of deposits on research and development contracts for services that had not been incurred as of the balance sheet date. Prepaid expenses and other assets include prepaid general and administrative expenses, such as insurance, rent, investor relations fees and compensatory stock issued for services not yet incurred as of the balance sheet date.

The entire note disclosure regarding the Company's prepaid expenses and other current assets. These assets are primarily deposits on contracts but also includes other prepaid expenses such as rent, insurance, and investor relations services.